The Los Angeles County Sheriff’s Department is in mourning Saturday for three detectives killed in an explosion at a training facility in East Los Angeles in the agency’s deadliest day since 1857.

The person driving the vehicle was believed to have lost consciousness while at the wheel, leading to the incident around ...

The Los Angeles County Sheriff's Department is in mourning Saturday for three detectives killed in an explosion at a training facility in East Los Angeles in the agency's deadliest day since 1857.